Interaction of Solar Neutrinos with 128Te and 130Te

The interaction of solar neutrinos with the ¹²⁸Te and ¹³⁰Te isotopes was studied taking into account the resonance structure of charge-exchange strength functions S(E). An analysis was made of both experimental data on the strength functions S(E) obtained in the reactions (³He, t) and the strength functions S(E) calculated in the microscopic theory of finite Fermi systems. The resonance structure of the S(E) strength function was investigated, and the Gamow–Teller, analog, and pygmy resonances were identified. The capture cross sections σ(E) of solar neutrinos by the two isotopes were calculated with consideration of the resonance structure of the strength function S(E), and the influence of the resonances on the energy dependence σ(E) was analyzed. It was shown that, when calculating the cross section σ(E), the resonance structure of the strength function S(E) should be taken into account.